A spring return actuator moves the damper blade to the safe position in case of a power failure. Define the safe position with the order code: NC (normally closed) or NO (normally open). The spring return actuator is factory set according to the safe position.

The normal position of the damper blade is only achieved with 1-wire control (control voltage).

Control options and effect of actuator action in case of factory setting

Order code detail

Function

Control

Direction of rotation

Order code detail

Function

Control

1

2

B30, B32

Open/close

1-wire control, 2-wire control

CLOSED

OPEN

B40, B42

Open/close

1-wire control, 2-wire control

CLOSED

OPEN

BP0, BP2

Open/close

1-wire control (spring return)

BR0, BR2

Open/close

1-wire control (spring return)

Actuators LM24A and LM24A-F

Supply voltage (AC)

24 V AC ± 20 %, 50/60 Hz

Supply voltage (DC)

24 V DC ± 20 %

Power consumption – load

1 W

Power consumption – idle

0.2 W

Power rating

1.5 VA

Torque

5 Nm

Running time for 90°

150 s

Control input signal

1-wire control or 2-wire control (3-point)

Connecting cable

3 × 0.75 mm², 1 m long

IEC protection class

III (protective extra-low voltage)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

0.5 kg

Actuator LM230A and LM230A-F

Supply voltage

100 – 240 V AC –15 % +10 %, 50/60 Hz

Power consumption – load

1.5 W

Power consumption – idle

0.5 W

Power rating

3.5 VA

Torque

5 Nm

Running time for 90°

150 s

Control input signal

1-wire control or 2-wire control (3-point)

Connecting cable

3 × 0.75 mm², 1 m long

IEC protection class

II (protective insulation)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, low voltage to 2014/35/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

0.5 kg

Auxiliary switch S2A

Type of contact

2 changeover contacts1)

Max. switching voltage (AC)

250 V AC

Max. switching current (AC)

3 A (resistive load); 0.5 A (inductive load)

Max. switching voltage (DC)

110 V DC

Max. switching current (DC)

0.5 A (resistive load); 0.2 A (inductive load)

Connecting cable

6 × 0.75 mm², 1 m long

IEC protection class

II (protective insulation)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, low voltage to 2014/35/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

0.250 kg

1) If both auxiliary switches are used the switching voltages must be the same

Spring return actuator NF24A

Supply voltage (AC)

24 V AC ± 20 %, 50/60 Hz

Supply voltage (DC)

24 V DC –10 %, +20 %

Power consumption – load

6 W

Power consumption – idle

2.5 W

Power rating

8.5 VA

Torque

10 Nm

Motor running time for 90°

< 75 s

Spring return time

20 s (for < −20 °C up to 60 s)

Control input signal

Supply voltage on/off

Connecting cable

2 × 0.75 mm², 1 m long

IEC protection class

III (protective extra-low voltage)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

1.8 kg

Spring return actuator NF24A-S2

Supply voltage (AC)

24 V AC ± 20 %, 50/60 Hz

Supply voltage (DC)

24 V DC –10 %, +20 %

Power consumption – load

6 W

Power consumption – idle

2.5 W

Power rating

8.5 VA

Torque

10 Nm

Motor running time for 90°

< 75 s

Spring return time

20 s (for < −20 °C up to 60 s)

Control input signal

Supply voltage on/off

Auxiliary switch: type of contact

2 changeover contacts1)

Max. switching voltage (AC)

250 V AC

Max. switching current (AC)

3 A (resistive load); 0.5 A (inductive load)

Max. switching voltage (DC)

110 V DC

Max. switching current (DC)

0.5 A (resistive load); 0.2 A (inductive load)

Connecting cable – actuator

2 × 0.75 mm², 1 m long

Connecting cable – auxiliary switch

6 × 0.75 mm², 1 m long

IEC protection class

III (protective extra-low voltage)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

2.0 kg

1) If both auxiliary switches are used the switching voltages must be the same

Spring return actuator NFA

Supply voltage (AC)

24 – 240 V AC –20 % +10 %, 50/60 Hz

Supply voltage (DC)

24 – 125 V DC ±10 %

Power consumption – load

6 W

Power consumption – idle

2.5 W

Power rating

9.5 VA

Torque

10 Nm

Motor running time for 90°

< 75 s

Spring return time

20 s (for < −20 °C up to 60 s)

Control input signal

Supply voltage on/off

Connecting cable

2 × 0.75 mm², 1 m long

IEC protection class

II (protective insulation)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, low voltage to 2014/35/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

2.0 kg

Spring return actuator NFA-S2

Supply voltage (AC)

24 – 240 V AC –20 % +10 %, 50/60 Hz

Supply voltage (DC)

24 – 125 V DC ±10 %

Power consumption – load

6 W

Power consumption – idle

2.5 W

Power rating

9.5 VA

Torque

10 Nm

Motor running time for 90°

< 75 s

Spring return time

20 s (for < −20 °C up to 60 s)

Control input signal

Supply voltage on/off

Auxiliary switch: type of contact

2 changeover contacts1)

Max. switching voltage (AC)

250 V AC

Max. switching current (AC)

3 A (resistive load); 0.5 A (inductive load)

Max. switching voltage (DC)

110 V DC

Max. switching current (DC)

0.5 A (resistive load); 0.2 A (inductive load)

Connecting cable – actuator

2 × 0.75 mm², 1 m long

Connecting cable – auxiliary switch

6 × 0.75 mm², 1 m long

IEC protection class

II (protective insulation)

Protection level

IP 54

EC conformity

EMC to 2014/30/EU, low voltage to 2014/35/EU, RoHS to 2011/65/EU

Operating temperature

–30 to 50 °C

Weight

2.2 kg

1) If both auxiliary switches are used the switching voltages must be the same

Pneumatic actuator B555DC2

Control pressure

0.2 – 1.0 bar

Maximum pressure

2.0 bar

Compressed air

Compressed air for instruments, free of oil, water and dust

Weight

0.840 kg

Variants

Variants

Actuator LM24A

Any attachments are to be defined with the order code of the shut-off damper.

Attachment (max. 10MB)

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Your message is send and will be processed shortly.Our department for Service-Requests will contact you asap.For general question regarding products or services you can also call:Tel.: +91 (0) 22 6775-1600 | Fax: +91 (0) 226775-1613